Home / 78,970.68-118,376.19-34,021.35

Finding the Fourth Proportional to 78,970.68, 118,376.19 and 34,021.35

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Solution

The fourth proportional to 78,970.68, 118,376.19 and 34,021.35 is: 50,997.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,970.68 : 118,376.19 = 34,021.35 : x
  2. Step 2: Convert to fraction form
    78,970.68/118,376.19 = 34,021.35/x
  3. Step 3: Cross multiply
    78,970.68x = 118,376.19 × 34,021.35
  4. Step 4: Simplify right side
    78,970.68x = 4,027,317,791.66
  5. Step 5: Solve for x
    x = 4,027,317,791.66/78,970.68
  6. Step 6: Final answer
    x = 50,997.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.